• Preventive Nutrition and Food Science
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• v.8 no.1
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• pp.85-88
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• 2003

Effects of irradiation on color removal, tyrosinase inhibition, xanthine oxidase inhibition and nitrite scavenging capacity of Lonicera japonica extracts were evaluated. Lonicera japonica extracts were irradiated at 10, 20, and 30 kGy. Hunter color $L^{*}$- and $a^{*}$-values increased but $b^{*}$-values decreased dose-dependently following irradiation. The extracts were potent inhibitors of tyrosinase and xanthine oxidase. Tyrosinase inhibition was higher in the irradiated sample than non-irradiated, and subsequently increased with increasing irradiation doses. The extracts had a higher inhibitory effect against xanthine oxidase, and the effect was not changed by irradiation. Nitrite scavenging capacity was the highest in the extract at pH 1.2, and was not significantly affected by irradiation. These results indicate that gamma irradiation may not influence the biological activities of Lonicera japonica extracts when irradiated up to 30 kGy. Furthermore, color of the extracts can be improved to have improved applicability for the food and cosmetic industries without any adverse change in biological functions.ons.s.

• Food Science of Animal Resources
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• v.44 no.1
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• pp.178-188
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• 2024

The aim of this study is to investigate whether milk fermented by Lactiplantibacillus plantarum K79, which exhibits angiotensin-converting enzyme inhibitory activity, has an effect on lowering the blood pressure of hypertensive rats and to investigate biomarker changes in their blood. Experimental group: normal group (NG, Wistar-Kyoto rats): distilled water, control group [NCG, spontaneously hypertensive rats (SHR)]: distilled water, high treatment group (HTG, SHR): 500 mg/kg/day, medium treatment group (SHR): 335 mg/kg/day, low treatment group (SHR): 170 mg/kg/day, positive control group (PCG, SHR): Enalapril, 10 mg/kg/day. The experimental animals used in this study were divided into groups composed of 8 animals. In terms of weight change, a significant difference was observed between the NG and the SHR group, but there was no significant difference between the SHR group. After 8 wk of feeding, blood pressure was lowered more significantly in the HTG (209.9±13.3 mmHg) than in the NCG (230.8±7.3 mmHg). The treatment group has an effect of lowering blood pressure by significantly suppressing blood pressure-related biomarker protein expression than NG. The results obtained can be used as an antihypertensive material in a variety of food raw materials.

• Korean Journal of Human Ecology
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• v.16 no.1
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• pp.183-191
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• 2007

The purpose of this study was to measure the effect of nausea and learned food aversion on relationships linking food neophobia to appetite and food rejection. A total of 250 questionnaires were completed. Path analytic model was used measure the effect of mediator. Results of the study demonstrated that the path analytic result for the data also indicated excellent model fit. The influences of food neophobia on nausea and food rejection were statistically significant. The influences of nausea on learned food aversion and appetite were statistically significant. The influences of food neophobia on learned food aversion and appetite were not statistically significant. The influence of nausea on food rejection was not statistically significant. Moreover, nausea and aversion played a perfectly mediating roles in the relationship between food neophobia and appetite. Aversion also played no mediating role in the relationship between food neophobia and food rejection.

• Journal of Physiology & Pathology in Korean Medicine
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• v.19 no.5
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• pp.1267-1271
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• 2005

To investigate the effect of the frequently used anti-obese medicine GyeongshinhaeGihwan 1 (GGT1), in food intake, body weight and food efficiency ratio for high fat diet induced obese male rats. Also, to value the diffences between GyeogshinhaeGihwan 1 and FDA approved Sibutramine in anti-obesity effect. High fat diet induced obese male rats were classified into four groups - positive control group, negative control group, GyeongshinhaeGihwan 1 group and Sibutramine group - and their food intake and body weight were observed for eight weeks. Anti-obesity effect was estimated with food efficiency ratio which is calculated by weight inclose divided by food intake. The result shown in Fig. 2 suggests that the GyeongshinhaeGihwan 1 group is more effective on food intake control than the Sibutramine group. Average weight variation shows an increase in both positive/negative control group and medication group. Also, the result in Fig. 3 indicates that average food efficiency ratio decreases contrary to the average weight variation. In addition, repeatedly estimated variance analysis on average food efficiency ratio of the GyeonushinhaeGihwan 1 group shows (1) the result corollary to the time of observation of food efficiency ratio was effective under 0.05 variance (P-value 0.000). The differences between each groups were not shown under 0.05 variance. Compared to the control group, medication groups were visually more effective on food intake control. Although both groups had a tendency of weight increasing, food efficiency ratio considering food intake and weight variation rate showed a decrease. Especially, the medication group variated less than the control group corollary to the point of time, proving the individuals react less sensitive to the medicine. Moreover, there were no differences in the anti-obesity effect between GyeongshinhaeGihwan 1 group and Sibutramine group studied by repeatedly estimating variance analysis(P-value: 0.610). When considering Sibutramine as an anti-obesity medicine approved by FDA, the point of being classifed in the same group proves the effect of GyeongshinhaeGihwan 1 as an anti-obesity medicine.

• Fisheries and Aquatic Sciences
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• v.25 no.4
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• pp.231-242
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• 2022

Effect of different concentrations of hypotaurine (HTU) on melanosis and quality of shrimps during 10 d storage in ice were studied. During refrigeration, the total plate count and total volatile basic nitrogen of shrimps treated with 20 g/L HTU were the lowest, and the hardness and microstructure were the best. Moreover, the score of melanoses, pH and total bile acid of shrimps treated with 20 g/L HTU were also low. Sensory evaluation showed that HTU treatment could make the shelf life of shrimps 3-4 days longer compared with the control. Based on the above physical and chemical indexes, 20 g/L HTU showed great potential as a safe inhibitor in the treatment of shrimps' melanosis.

• The Korean Journal of Franchise Management
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• v.13 no.2
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• pp.33-51
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• 2022

Purpose: The online market is growing the most in history due to the expansion of non-face-to-face commerce. In addition, as consumers' interest in health, food safety, and environment increases, interest in and consumption of eco-friendly agricultural products is also increasing. Therefore, in the case of a specialty store that sells eco-friendly organic agricultural products, a marketing strategy that can increase customer loyalty by reflecting these consumer needs is necessary. In this study, the store attributes of eco-friendly food stores are classified into location, assortment, price, quality, and employee service, and the effect of each store attribute on utilitarian and hedonic value is investigated. Research design, data, and methodology: The subjects of this study were customers who visited an eco-friendly food store. Of the 511 survey responses, 311 were used for statistical verification, excluding 200 who had not visited within the last 3 months. For statistical analysis, Smart PLS 3.0 was used, and after checking the validity and reliability of the items, hypothesis testing was performed. Result: As a result of the study, it was found that assortment, quality, and employee service among store attributes had a positive (+) effect on utilitarian and hedonic value. Second, location had no significant effect on utilitarian and hedonic value. Third, price did not appear to have a positive (+) effect on the utilitarian value, and it was found to have a positive (+) effect on the hedonic value. Fourth, It was investigated whether the presence or absence of delivery service had an effect on store attributes between utilitarian and hedonic value, and it was found that there was a significant effect between employee service and hedonic value. Conclusions: Among eco-friendly food store environment management will be required in order to provide food that meets the tastes and needs of consumers by diversifying the taste, standard, and quality grade of food, and to maintain or improve the quality. In order to unlike other stores, eco-friendly food stores have high price resistance from the point of view of consumers, so it is necessary to diversify promotional media such as YouTube and SNS to raise awareness of eco-friendly organic food.

• Nutrition Research and Practice
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• v.8 no.3
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• pp.312-318
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• 2014

BACKGROUND/OBJECTIVES: Due to recent changes in social structure, single-person households are on the rise worldwide and therefore the interest in the quality of life of singles is increasing, but the research on the relationships related to their diet-related quality of life is scarce. This research analyzes the structural relations in the effect of convenience food satisfaction and quality of life according to dietary style of Korean, Japanese and Chinese singles. SUBJECTS/METHODS: The targets of this study were Korean, Japanese, and Chinese singles, identified as adults between the ages of 25 and 54, having economic capabilities or working and living alone, either legally or in actuality having no partner. A statistical analysis was conducted using SPSS12.0 for Windows and SEM using AMOS 5.0 statistics package. The reliability of these findings was supported by a Cronbach's alpha coefficient of 0.6 and higher for all the factors. In an attempt to study the level of satisfaction with convenience food in accordance to dietary style and the quality of life of singles, a structural equation model was constructed and analyzed. RESULTS: Of the three countries, regarding the effect of dietary style on singles' quality of life, the convenience-oriented style was found to have a negative effect on Korean singles' overall quality of life, but a positive effect on Japanese singles' overall quality of life, and a negative effect on Chinese singles' positive psychological aspect of quality of life. In addition, although Chinese singles have a high level of interest in health, they have an overall high level of satisfaction regarding fast food and its nutritional value. CONCLUSIONS: The number of singles in Korea, Japan, and China has been consistently increasing in recent years, and there is a need for continuous interest in their healthy dietary lifestyles in terms of convenience, economy, and taste.

• Journal of the Korean Society of Food Culture
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• v.25 no.3
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• pp.312-323
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• 2010

The objective of this study was to examine the effects of relationships between food service companies and their client companies by surveying employees working at cafeterias among a food service companies' client companies. For this purpose, previous research was reviewed, and confirmatory research was conducted using a questionnaire. In the questionnaire survey, the subjects were sampled through convenience sampling from the client companies of A Food Service Company, and 182 valid questionnaires were used in the analysis. The results of this study are summarized as follows. First, the characteristics of the relationship between the food service company and its client companies, which were reputation, communication, operation skill, and contact-point employees' service quality, had a significant effect on trust, and the effect was high in the order of contact-point employees' service quality, communication, operation skill, and reputation. Satisfaction was significantly affected by reputation, operation skill, and contact-point employee' service quality, but not by communication. The effect was high in the order of contact-point employees' service quality, reputation, and operation skill. In addition, reputation, communication, operation skill, and contact-point employees' service quality had a significant effect on long-term orientation, and the effects were high in the order of reputation, contact-point employees' service quality, communication, and operation skill. Second, with regard to the quality of relationships between a food service company and its client companies, trust had a significant effect on satisfaction. Third, among the factors related to the quality of relationships between the food service company and its client companies, trust and satisfaction had a significant effect on long-term orientation, and the effect of satisfaction was higher than that of trust. This study has scientific significance as one of only a few studies on factors affecting the long-term relationship between food service companies and their client companies, along with managerial implications that contact-point employees' capabilities are most important in service businesses, and thus efforts should be made at employing and educating them properly.

• Food Industry
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• s.168
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• pp.18-27
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• 2002

Effect of gamma irradiation on physiological activity of Korean soybean fermented foods were investigated. Chungkookjang, the whole cooked soybean product and Doenjang, soybean paste were purchased and irradiated at 5,10 and 20 kGy of absorbed doses. The

• Culinary science and hospitality research
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• v.17 no.1
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• pp.58-77
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• 2011

In this study, the correlation between harmony of coffee-food and taste preference was examined by conducting an investigative analysis in oilier to find out taste preference having effect on the harmony of coffee-food. As a result of study, foreign food was perceived as having average level or higher harmony in confectionery and bread in harmony of coffee-food, coffee beans were perceived as being more harmonious than a coffee mix. Korean food was perceived as average or lower harmony with coffee with s relatively high level in rice cake, traditional snacks and Hangwa, all of which are traditional desserts. In the correlation between taste preference and harmony of coffee-food, foreign food was shown well-matched with coffee as sweet and salty tastes were low; however, for sour, hitter, spicy and plain tastes, the more preference they had, the better-matched they were. As a result, taste preference had effect on harmony with coffee-food. For foreign food, it was shown that sweet and plain tastes influenced it while bitter and plain tastes did in Korean food in general.